I' suggest seat selection should be made by actually sitting in a few different seats and determined what fits and feels suitable/comfortable to your own body size .... trade shows typically offer manufacturer's display units, or even at car shows. What fits one person doesn't fit another, etc. I shopped for a couple years before making a decision... did that twice (once for a true "competition" race seat, the later for more everyday type performance seat. Most of the factory seats from our cars just don't offer sufficient lateral support.